28804526073 has 10 divisors (see below), whose sum is σ = 43028983514. Its totient is φ = 19203017328.

The previous prime is 28804526021. The next prime is 28804526081. The reversal of 28804526073 is 37062540882.

28804526073 is a `hidden beast` number, since 288 + 0 + 45 + 260 + 73 = 666.

It can be written as a sum of positive squares in only one way, i.e., 26235252729 + 2569273344 = 161973^2 + 50688^2 .

It is not a de Polignac number, because 28804526073 - 2¹⁷ = 28804395001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28804526273) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 177805636 + ... + 177805797.

Almost surely, 2^28804526073 is an apocalyptic number.

It is an amenable number.

28804526073 is a deficient number, since it is larger than the sum of its proper divisors (14224457441).

28804526073 is an equidigital number, since it uses as much as digits as its factorization.

28804526073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355611445 (or 355611436 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The spelling of 28804526073 in words is "twenty-eight billion, eight hundred four million, five hundred twenty-six thousand, seventy-three".